Process of making wire-glass.



No. 792,172. I PATENTED JUNE 18, 1905. P. & A. SHUMAN.

PROCESS OF MAKING WIRE GLASS.

APPLICATION FILED MAR. 20, 1905.

UNTTEn STATES Patented June 13, 1905.

PATENT Orricn.

FRANK SHUMAN, OF PHILADELPHIA, AND ARNO SHUMAN, OF CONNELLS- VILLE, PENNSYLVANIA, ASSIGNORS TO CONTINUOUS GLASS PRESS COMPANY, A CORPORATION OF NEWV JERSEY.

PROCESS OF MAKING WIRE-GLASS.

SPECIFICATION forming part of Letters Patent No. 792,172, dated June 13, 1905. Application filed March 20, 1905. Serial No. 250,977.

To all whom, it may concern:

Be it known that we, FRANK SHUMAN, of the city and county of Philadelphia, and ARNO SHUMAN, of Connellsville, Fayette county,

State of Pennsylvania, have invented an Improvement in Process of Making ire-Glass Sheets, of which the following is a specification.

Our process has reference to the process of making wire-glass sheets; and it consists of certain improvements, which are fully set out hereinafter.

.Heretoi'ore it has been customary to form wire-glass sheets with clean edges and confin- I 5 ing the meshed wire center within the bounding edges of the glass.

In another pending application of ours, Se-

rial No. 250,978, filed March 20, 1905, is set out a form of wire-glass in which the meshed wire center extends beyond the edge of the glass to form loops by which it may be clamped or held in place upon the sash-frame.

The object of our present application is to provide a method or process of making such sheets of wire-glass ready for application to the sash-frame.

In carrying our process into practice we first cut the sheet of wire-glass into the requisite size and then again out the sheet with a diamond or other cutter parallel to each edge and about one inch from the said edge and finally crush the glass between said last-mentioned cuts and outer edge of the glass sheet away from the meshed wire, leaving the ex- 3 5 posed metallic center as an extension beyond the edge of the glass. i/Vhile in our preferred method we employ the second cuts parallel to the outer edges of the preliminary sheet, we do not confine ourselves thereto, as it will 4 suifice for our invention, broadly considered, to crush the glass away from the meshed wire center for a short distance all around the sheet.

Our invention will be better understood by reference to the drawings, in which- Figure 1 is a plan view of a sheet of wireglass in its completed form. Fig. 2 is a plan View of a portion of the sheet in process of being made, and Fig. 3 is a sectional view of same on line 3 3.

A is the sheet of wire-glass, and B is the 5 extended portion of its meshed wire center. The sheet of wire-glass after being formed in the usual manner is cut into a size represented by the dotted line in Fig. 1. Then the surface is cut on lines D with a diamond or other cutter about one inch from the outer edge C, and the glass between the lines C and D is gradually crushed or torn away from the meshed wire B until it is clear and exposed. This breaking away of the glass to expose the meshed wire B is shown in Fig. 2. In practice the glass may be crushed by a suitablyconstructed machine, which will accomplish the results in a speedy and sure manner and at a minimum cost.

If desired, the cutting of the lines D may be omitted and the simple crushing of the glass alone relied upon; but in such case the greatest care must be exercised to prevent cracking of the body of the sheet.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. The process of making a sheet of wireglass which consists in first producing a sheet of wire-glass of the maximum size, and then crushing and removing the glass for a distance from the outer edges to expose the meshed metallic center.

2. The process of making a sheet of wireglass which consists in first producing a sheet of wire-glass of the maximum size, then placing lines of cuts in the surface of the sheet at a short distance from and substantially parallel to the edge, and then crushing and re- 5 moving the glass between the lines of cuts and outer edges to expose the meshed metallic center.

In testimony of which invention we hereunto set our hands.

FRANK SHUMAN. ARNO SHUMAN.

Witnesses as to Frank Shuman:

R. M. HUNTER,

R. M. KELLY. Witnesses as to Arno Shuman:

D. WILLIAMS,

W. H. WVILLIAus. 

